{"product_id":"smart-tec-greennote-replacement-battery-12v-3800mah-ni-mh","title":"Smart Tec GreenNote DR36 Replacement Battery 12V 3800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSmart Tec GreenNote — 12V Ni-MH Replacement Battery (DR36)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V Ni-MH battery rated at 3800mAh (45.6Wh), built to fit the Smart Tec GreenNote laptop. It replaces OEM part numbers DR36 and DR36S. When the original cell no longer holds a charge, this unit restores portable operation to the notebook.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGreenNote platform fit:\u003c\/strong\u003e\n    The DR36 and DR36S share the same 12V rail, connector pinout, and BMS handshake profile on the GreenNote board. Either part number slots into the same bay without hardware modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, full-load discharge, and BMS cutoff on the GreenNote. The protection circuit tripped cleanly at low-voltage threshold, and charge acceptance held steady across repeat cycles without throttling.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the GreenNote:\u003c\/strong\u003e\n    After fitting this battery, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This single cycle resets the BIOS battery learn cycle and clears the inaccurate health warning the GreenNote commonly shows after any cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting a new DR36\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe GreenNote BIOS reads health data from EEPROM stored on the battery controller, not from live cell measurements. When a new cell goes in, that EEPROM data does not match what the firmware expects from a fresh pack. The BIOS flags it as degraded because it is comparing old cycle-count records against the new cell. Running the learn cycle — full discharge to hibernate, then a full uninterrupted charge — rewrites the relevant flags and clears the warning.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGreenNote shutting down abruptly when the OS gauge shows 20–25% remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff, not a gauge error. Under combined CPU and display load, the cell voltage drops faster than the fuel gauge IC can track. The BIOS triggers an emergency shutdown before the displayed percentage reaches zero. The fix is to complete two or three full calibration cycles so the fuel gauge IC maps the actual discharge curve of the new Ni-MH cell. After calibration, the shutdown point and the displayed percentage align correctly at or below 5%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410856247386,"sku":"BWCS-DR36HB-1","price":89.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410856280154,"sku":"BWCS-DR36HB-2","price":105.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410856312922,"sku":"BWCS-DR36HB-3","price":118.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DR36HB-big.webp?v=1779581376","url":"https:\/\/batteryweb.com\/products\/smart-tec-greennote-replacement-battery-12v-3800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}